Permanent-hair-waving unit



April 14, 1931. M. D. PRovosT 1,800,658

PERMANENT HAIR wAvING UNIT Filed Feb. 4, 1950 2 Sheets-Sheet 1 Inventor Bymaozm A tforney April 14, 1931'. M. D. PRovosT l1,800,658

' PERMANENT HAIR WAVING UNIT Filed Feb. 4, 1930 2 Sheets-Sheet 2 ByQ/mmh A tomcy Patented Apr. 14, 1931 IKARCLLUS DUKE- PROVOST, OF SALT LAKE CTIY, UTAH PERMANENT-HAIR-WAVNG 'NT Application filed February 4, 193

This invention relates to an improved permanent hair waving unit of a type similar to an analogous unit now used in the trade and known under the name Duart.

Generically stated, the prior art unit mentioned, like the unit herein shown and described, is characterized by a sectional base whichfunctions as a clamp, the sections being hingedly connected together in a manner to permit the bank of hair to be placed between the sections. This base constitutes a mounting for the curling rod around which the free end portion of the hair is tightly wound.

y In the prior art structure mentioned, the upper face of the sections of the base are formed with outwardly diverging anges which cooperate in producing a trough-like receptacle in which the curling rod is seated. The curling rod is formed at one end with aratchet wheel and associated with this is a retention pawl. At the opposite end, the curling rod is provided with a retaining latch for the extremity of the hair.

These and other features of the prior art device are well known. The present invention is characteristically distinguishable in that it embodies a structural arrangement of details which allow the curling rod to be arranged oftside in such a manner as to permit operation of the curling rod at a point much closer to scalp, the advantage being in that the improved arrangement permits the formation of a wave close to the scalp.

The foregoing results and other features and advantages will become more readily apparent from the following description and drawings.

ln the drawings:

Figure 1 is an elevational view of a unit constructed in accordance with the present invention observing one edge thereof.

Figure 2 is a top plan view of the structure seen in Figure 1.

Figure 3 is a view like Figure 2 with the curling rod or mandrel removed. Y

Figure 4 is an edge view of Figure 3.

Figure 5 is a top view with the sections of the clamping base swung apart. Y

Figure 6 is an enlarged cross section show- Serial No. 425,829.

ing the pawl and ratchet mechanism and other associated details.

Figure 7 is a cross section on the line 7--7 of Figure 3.

Figure 8 is a detail view of the curling rod or mandrel on which the hair is wound.

Attention is first invited to Figure 5, wherein it will be seen that the clamping hase is composed of a pair of complemental sections distinguished by the reference characters 9 and l() respectively. These are hingedly connected together at one end through the medium of links 11. At the opposite end, provide similar links 12 and these links carry a pivoted retaining latch 13 including a retention cam 1-l which is adapted for reception in the keeper notch or seat 15.

is seen in Figure 6, each section is of threeply construction, that is, it is made up of three separate plates thus providing a laminated structure. The sections 10 for instance comprise an inner plate 16 of heat insulation ma.- terial and a parallel outer plate 17. These are spaced apart by appropriate spacing elements 18 as seen in Figure 1. In addition, there is an intermediate plate 19 whose inner edge is formed into a channel 20 for reception of the tongue of a rubber facing strip 2l.

The plate 17 is formed atlongitudinally spaced points with right-angular-l5T disposed flanges 22 which as seen in Figure t have their upper edges curved and their inner adjacent ends spaced apart to facilitate circulation of air for cooling purposes. Attached to one of these flanges is an arcuate resilient strip 23 having a curled end 24 forming a retention pawl and this is cooperable with the corrugation 25 of the ratchet head seen in Figure 8, This constitutes an integral part of the curling rod or mandrel 26.

At the opposite end of this rod is a pivoted retaining clip 27. Referring again to Figure G, it will be observed that the sections 9 0f the clamp comprises three plates; namely, the inner plate 28, the outer plate 29, and the central or intervening plate 30. The latter plate is formed with a channel 31 receiving and holding in place the remaining rubber/spacingstrip or buffer 32. Thus when the two sections are swung together as seen in Figure 6, the rubber buifers 2l and 32 come together and firmly clamp, the strands 'of the hair therebetween. Y* Y Y Y Particularly do I wish to emphasize the features of construction of theclamping base. 5 The'three plate construction of each section with the` spacing, elements .18V therebetween, 'afford opensp'a'ces-.for free circulation of nir V`for cooling purposes. .Y This insures'comfort when vthe unit is in place on the head. The 1- novel assemblyV ofi plates 4facilitatesconstructien by way of simplified manufacture, and affords an'economical and yconvenient and compact arrangement ofeiements.. y A

There are no flanges on the section 9. K The il'angesfr22 are on thel section-10 and they arev spaced apart to further facilitate freeA circulationfof One-of the flanges carries the retention pawl 23 and this permitsthe ena- 2otire mandrel or curlinggrod 26-to be a ranged u Y ,M

substantiallyoverthe vsection 9v or the base, This disposes the-.rod ofi to one side of the center where the two sections seat and insures the formation of a wave at a point much closer to the hair than inprior art units of a similar construction.- Y

Tn practice it is obvious that the free end portions ofthefhair., after the hair has been passed between `the rubber strips 2l, are at- '30tach'ed `tothe curlingL rod 26 Lthrrmgh the modiumofthe-pivoted clamp 27. Then, the

pawl 23 is engaged with the corrugated ratch- Y etliead 25, and ;the-rodis'turned in a well known manner to wind the hair firmly there- ,-on,-asf represented in Figures l and 2.

V`The spaced Viian'ges 22 vconstitute stops L for preventing;accidental displacement of the rod and ,forv aidingin holding it jin proper n alinement. y Y 403;- It is thought that persons skilledin the art Y towhichzthe' invention relates will be able'to obtain a clear understanding of the invention afterfconsidering the description in connectio/'nwith the drawings.l .n Therefore, a more 4 ,lengrthy descriptionis regarded as unnecessary.V .1 1

Minor changes in1 shape, size, and Vrearrangement of details coming within: the iield of..` invention: claimed may be resorted toA in gactualipractice'if desired. f i

lola-im: y Y i l. Inapermanenthair waving unit ofthe v Y class-described, a pair: of elongated, hingedly connected companion sections, latchl means 575g at one end of ther sectionsforjholding them inabutting relationship-*the outer face vof on'eof-'s'aid sections being freeV of obstructionV and: substantially plane, vthe Y corresponding face ofthe remainingsection being provided eee withlongitudinally spaced right-angularly disposedistop flanges along :its inner longi-iV l tudinal edge." f. g 2.; Inapermanenthair waving unitl of the one end of thesections for holding fthem in abutting relationship, the outery face ofone of said sections being free of obstruction and of the remainingsection being provided with iongitudinally spaced .right-angularly disposed .st-op franges .along itsY .inner longitudi nal yedge,.. said flanges havingtheir upper ec ges .of curvate configuration Vand th`eir,inner Vends space d apart. Yto facilitate circulation of air therebetween, andan larcuate strip fastened to one of said-flanges andterrninating. in a'retentionhead overlying the iirst named plane section, said strip' ,constitiujingV a retaining pawl.

ln testimony whereof I afhxmy signature.

Y MARCELLUS DUKEPRGVOST,

los

class described, a'pa'ir of elongated, hingedlyy Y e5; connected companion sections, latchnmeanslat, 

